Disk protection types

Plan which methods you need to use to protect your data.

Device parity protection
Device parity protection uses a data redundancy technique that protects data by spreading the parity data across multiple disk units in the parity set. When a failure occurs on a disk unit that has device parity protection, the data is reconstructed.
Write cache and auxiliary write cache IOA
This topic describes how write cache and auxiliary write cache works.
Mirrored protection
Mirrored protection is beneficial if you have a multibus system or a system with a large single bus. A greater number of disk units provides more opportunity for failure and increased recovery time.
Hot spare protection
Protect your disk units with hot spare protection.
Multipath disk units
Multiple connections can be defined from multiple Input/Output Adapters (IOAs) on a system to a single logical unit number (LUN) in the Enterprise Disk Storage.

Parent topic: Disk protection